JPS6349040Y2 - - Google Patents
Info
- Publication number
- JPS6349040Y2 JPS6349040Y2 JP5059283U JP5059283U JPS6349040Y2 JP S6349040 Y2 JPS6349040 Y2 JP S6349040Y2 JP 5059283 U JP5059283 U JP 5059283U JP 5059283 U JP5059283 U JP 5059283U JP S6349040 Y2 JPS6349040 Y2 JP S6349040Y2
- Authority
- JP
- Japan
- Prior art keywords
- electroacoustic transducer
- holding device
- sound
- side wall
- sound guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000725 suspension Substances 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
Description
【考案の詳細な説明】
本考案は、保持装置特に補聴器用の電気音響変
換器の保持装置の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a holding device, particularly for a holding device for an electroacoustic transducer for a hearing aid.
補聴器に使用される電気音響変換器（マイクロ
ホンおよびイヤホン）は、音声以外の振動を避け
るために、ゴム等の弾性体でなる保持装置に収納
され補聴器本体の内部に装着されている。 Electroacoustic transducers (microphones and earphones) used in hearing aids are housed in a holding device made of an elastic material such as rubber and mounted inside the hearing aid body in order to avoid vibrations other than sound.
電気音響変換器を保持装置に装着せずに直接補
聴器ケースに装着した場合、入力用の電気音響変
換器からの信号は増幅され駆動信号となつて出力
用の電気音響変換器を駆動させると、この電気音
響変換器の振動が補聴器のケースに伝わり、更
に、再び入力用の電気音響変換器に入力される。
この時のループゲインが１以上である場合には、
この信号が増幅器によつて再び増幅され、更に大
きな駆動信号となつて出力用の電気音響変換器を
駆動することになる。この現象の繰り返しによ
り、ハウリングが発生する。また、ケースに直接
振動が加わつた場合にも振動が信号として音声と
一緒に電気音響変換器を介して出力され、Ｓ／Ｎ
比を悪くしたり、また、補聴器を過つて落とした
場合には、電気音響変換器が直接衝撃を受けて破
損する場合もあり、この様な問題を防ぐために電
気音響変換器に保持装置が使用されている。 When the electroacoustic transducer is attached directly to the hearing aid case without being attached to the holding device, the signal from the input electroacoustic transducer is amplified and becomes a drive signal to drive the output electroacoustic transducer. The vibrations of this electroacoustic transducer are transmitted to the case of the hearing aid, and are further input to the input electroacoustic transducer again.
If the loop gain at this time is 1 or more,
This signal is amplified again by the amplifier and becomes an even larger drive signal that drives the output electroacoustic transducer. Howling occurs due to repetition of this phenomenon. In addition, even when vibration is applied directly to the case, the vibration is output as a signal along with the sound through the electroacoustic transducer, and the S/N
If the ratio deteriorates or the hearing aid is accidentally dropped, the electroacoustic transducer may be damaged by direct impact.To prevent such problems, a retaining device is used on the electroacoustic transducer. has been done.
従来の補聴器用の電気音響変換器の保持装置を
図に従つて説明する。第１図、第２図、第３図に
おいて１は直方体の電気音響変換器で、その上面
中央部に音孔１ａを設け、一側壁にリード線２の
一端を半田付し、下面に沿つて折り曲げている。
３はゴム等の弾性体でなる保持装置で、一端開口
の角筒形のサスペンシヨン部３ａの底部外壁中央
部に長軸方向に貫通した導音孔３ｃを形成した導
音チユーブ３ｂを設け、開口端側４隅に鍔３ｄを
設けている。次に電気音響変換器１をサスペンシ
ヨン部３ａに嵌入して、保持装置に装置された電
気音響変器（第１図）を形成する。 A conventional holding device for an electroacoustic transducer for a hearing aid will be explained with reference to the drawings. In Figs. 1, 2, and 3, reference numeral 1 denotes a rectangular parallelepiped electroacoustic transducer, with a sound hole 1a provided in the center of its top surface, one end of a lead wire 2 soldered to one side wall, and a lead wire 2 soldered along the bottom surface. It's bent.
Reference numeral 3 denotes a holding device made of an elastic material such as rubber, and a sound guide tube 3b is provided in the center of the bottom outer wall of the suspension part 3a in the shape of a rectangular cylinder with one end open, in which a sound guide hole 3c is formed passing through in the longitudinal direction. Flanges 3d are provided at the four corners of the opening end. Next, the electroacoustic transducer 1 is inserted into the suspension part 3a to form an electroacoustic transformer (FIG. 1) mounted on a holding device.
この様に保持装置に装着された電気音響変換器
は、保持装置に振動を吸収されるためハウリング
現象は発生せず、補聴器本体を落としても保持装
置により破損を免れる。しかし、この様な保持装
置は、サスペンシヨン部を有底の筒形にするため
金属製作費は高くなり、かつ組立られても電気音
響変換器の音孔と保持装置の導音孔が密着しない
ため、サスペンシヨン部の開口部から侵入した音
により特性の乱れや、逆にサスペンシヨン部の開
口側から音漏れのためのハウリングが生ずる原因
となり、これを防止するためにサスペンシヨン部
の開口部と電気音響変換器との隙間を接着剤等で
密閉する作業が必要であつた。 The electroacoustic transducer mounted on the holding device in this manner does not cause howling because vibrations are absorbed by the holding device, and even if the hearing aid body is dropped, the holding device prevents damage. However, in such a holding device, the suspension part is made into a cylinder with a bottom, which increases the metal manufacturing cost, and even when assembled, the sound hole of the electroacoustic transducer and the sound guide hole of the holding device do not come into close contact. Therefore, sound entering through the opening in the suspension section may disrupt the characteristics, or conversely, howling may occur due to sound leaking from the opening side of the suspension section.To prevent this, the opening in the suspension section It was necessary to seal the gap between the transducer and the electroacoustic transducer using adhesive or the like.
本考案は、上記問題を解消するもので、サスペ
ンシヨン部と導音部を一体成形してサスペンシヨ
ン部を両端開口の筒形状にし、かつ、導音部をサ
スペンシヨン内側に突出させて凸部および凹部を
形成し、電気音響変換器を組込んだ場合、その音
孔の周囲を凸部で覆うことにより、外部音の侵
入、あるいは電気音響変換器の音孔からの音漏れ
を防止する簡単な構造の電気音響変換器の保持装
置を提供する。 The present invention solves the above problems by integrally molding the suspension part and the sound guiding part, making the suspension part into a cylindrical shape with openings at both ends, and making the sound guiding part protrude inside the suspension to form a convex part. When an electroacoustic transducer is installed, a concave part is formed, and by covering the sound hole with a convex part, it is easy to prevent external sound from entering or sound leaking from the sound hole of the electroacoustic transducer. Provided is a holding device for an electroacoustic transducer having a unique structure.
以下、本考案の一実施例を図に従つて説明す
る。第４図〜第７図において、１１は直方体の電
気音響変換器で、その上面中央部に音孔１１ａを
設け、一側壁にリード線１２を半田付し、下面に
沿つて折り曲げている。１３は弾性体の保持装置
で、サスペンシヨン部１３ａと導音チユーブ１３
ｂを一体成形している。サスペンシヨン部１３ａ
は両端開口の断面長方形の筒状で内部に電気音響
変換器１１を収納する空間部１３ｃを形成し、一
組の対向する側壁のうち一方の側壁１３ｊの両開
口端縁の両側にそれぞれ三角形板状の凸部１３ｄ
を設け、他の対向する両側壁との境界部である側
壁１３ｊの縁部に三角柱状の凸部１３ｅをそれぞ
れ設けている。側壁１３ｊと対向する側壁の外側
中央部には、突出して円筒状の導音チユーブ１３
ｂが設けられている。 An embodiment of the present invention will be described below with reference to the drawings. 4 to 7, reference numeral 11 denotes a rectangular parallelepiped electroacoustic transducer, with a sound hole 11a provided in the center of its upper surface, and a lead wire 12 soldered to one side wall and bent along the lower surface. Reference numeral 13 denotes an elastic holding device, which holds the suspension section 13a and the sound guide tube 13.
b is integrally molded. Suspension part 13a
has a cylindrical shape with a rectangular cross section and is open at both ends, and forms a space 13c in which the electroacoustic transducer 11 is housed.Triangular plates are provided on both sides of the opening edges of one side wall 13j of a pair of opposing side walls. shaped convex portion 13d
A triangular prism-shaped convex portion 13e is provided at the edge of the side wall 13j, which is the boundary between the side wall 13j and the other opposing side walls. A cylindrical sound guide tube 13 protrudes from the outer center of the side wall opposite to the side wall 13j.
b is provided.
導音チユーブ１３ｂには長軸方向中心に貫通し
た導音孔１３ｇが設けられ、外側所定の位置の円
周に本体ケース（図示せず）に装着するための環
状の凹部１３ｆが設けられている。この導音チユ
ーブ１３ｂと成形、結合された部分のサスペンシ
ヨン部１３ａ内壁には、導音孔１３ｇの外周に沿
つて先細りのエツジである凸部１３ｈが形成さ
れ、その外周に沿つて、凸部１３ｈが圧縮された
場合に生ずる余分な肉逃げのために凹部１３ｉが
形成されている。 The sound guide tube 13b is provided with a sound guide hole 13g penetrating through the center in the longitudinal direction, and an annular recess 13f for attachment to a main body case (not shown) is provided on the circumference at a predetermined position on the outside. . A convex portion 13h, which is a tapered edge, is formed along the outer periphery of the sound guide hole 13g on the inner wall of the suspension portion 13a at the portion molded and combined with the sound guide tube 13b. A recess 13i is formed to allow for extra thickness to escape when 13h is compressed.
以上の様な保持装置１３の空間部１３ｃに、電
気音響変換器１１が音孔１１ａを導音孔１３ｇに
合致させて嵌入されると、凸部１３ｈは音孔１１
ａの周囲を塞ぎ、この時生ずる余分な肉は凹部１
３ｉに吸収され、電気音響変換器１１の音孔１１
ａは完全に外部から遮断される。 When the electroacoustic transducer 11 is fitted into the space 13c of the holding device 13 as described above with the sound hole 11a aligned with the sound guide hole 13g, the convex portion 13h is inserted into the sound hole 11.
The area around a is closed, and the excess meat that occurs at this time is placed in the recess 1.
3i, the sound hole 11 of the electroacoustic transducer 11
a is completely cut off from the outside.
この様にして組立てられた保持装置付電気音響
変換器（第４図）が補聴器本体に装着され、ハウ
リング、外部振動および衝撃による破損を防ぐこ
とになる。 The electroacoustic transducer with a holding device (FIG. 4) assembled in this manner is attached to the hearing aid body to prevent damage due to howling, external vibrations, and impact.
以上述べたように本考案による電気音響変換器
の保持装置は、構造簡単なため金型製作容易で、
かつ接着剤を必要としないため作業もしやすく従
つて原価低減に有効で、実用上の効果大である。 As mentioned above, the electroacoustic transducer holding device according to the present invention has a simple structure, so mold production is easy.
In addition, since no adhesive is required, it is easy to work with, and is therefore effective in reducing costs, and has a great practical effect.
第１図は従来例の電気音響変換器を装着した保
持装置の斜視図、第２図は同じく分解斜視図、第
３図は同じく保持装置の平断面図、第４図は本考
案一実施例の電気音響変換器を装着した斜視図、
第５図は同じく分解斜視図、第６図は同じく保持
装置の平断面図、第７図は同じく保持装置の側断
面図。
１３：保持装置、１３ａ：サスペンシヨン部、
１３ｄ，１３ｅ：凸部、１３ｂ：導音チユーブ、
１３ｇ：導音孔、１３ｈ：凸部、１３ｉ：凹部、
１３ｊ：側壁。
Fig. 1 is a perspective view of a holding device equipped with a conventional electroacoustic transducer, Fig. 2 is an exploded perspective view, Fig. 3 is a plan sectional view of the holding device, and Fig. 4 is an embodiment of the present invention. A perspective view of the electroacoustic transducer installed.
FIG. 5 is an exploded perspective view, FIG. 6 is a plan sectional view of the holding device, and FIG. 7 is a side sectional view of the holding device. 13: Holding device, 13a: Suspension part,
13d, 13e: convex portion, 13b: sound guide tube,
13g: Sound guide hole, 13h: Convex portion, 13i: Concave portion,
13j: Side wall.
Claims (1)
壁のうち一方の側壁１３ｊの両開口端の縁および
他の対向する両側壁と境界部の縁にそれぞれ凸部
１３ｄ，１３ｅを設けたサスペンシヨン１３ａ
と、前記側壁１３ｊに対向する側壁の外側中央部
に突出して長軸方向に貫通した導音孔１３ｇを設
けた筒状の導音チユーブ１３ｂとを弾性体で一体
成形したものにおいて、 前記導音チユーブ１３ｂの一端部を前記サスペ
ンシヨン１３ａの内部に突出して前記導音孔１３
ｇの外周に沿つて凸部１３ｈを形成し前記凸部１
３ｈの外周に沿つて凹部１３ｉを形成してなる電
気音響変換器の保持装置。[Claims for Utility Model Registration] Cylindrical with an open end and a rectangular cross section, and a convex portion on the edge of both open ends of one side wall 13j of a pair of opposing side walls and on the edge of the boundary with the other opposing side walls. Suspension 13a with 13d and 13e
and a cylindrical sound guide tube 13b provided with a sound guide hole 13g protruding from the outer central part of the side wall opposite to the side wall 13j and penetrating in the longitudinal direction, which are integrally molded from an elastic body. One end of the tube 13b protrudes into the interior of the suspension 13a to open the sound guide hole 13.
A convex portion 13h is formed along the outer periphery of the convex portion 1.
A holding device for an electroacoustic transducer in which a concave portion 13i is formed along the outer periphery of the electroacoustic transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5059283U JPS59157398U (en) | 1983-04-05 | 1983-04-05 | Electroacoustic transducer holding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5059283U JPS59157398U (en) | 1983-04-05 | 1983-04-05 | Electroacoustic transducer holding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59157398U JPS59157398U (en) | 1984-10-22 |
| JPS6349040Y2 true JPS6349040Y2 (en) | 1988-12-16 |
Family
ID=30181048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5059283U Granted JPS59157398U (en) | 1983-04-05 | 1983-04-05 | Electroacoustic transducer holding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59157398U (en) |
-
1983
- 1983-04-05 JP JP5059283U patent/JPS59157398U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59157398U (en) | 1984-10-22 |
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